Looking for a spectacular low carb cake for spring? Look no further than this gorgeous keto Coconut Lemon Curd Cake. Guest post by Kim of Low Carb Maven.
Spring is in full swing in Southern California and I couldn’t be happier. At the moment my rose bushes are ready to bloom and the neighbor’s citrus trees are full of blossoms. I don’t know if you’ve smelled orange or lemon blossoms before, but they have an amazingly strong sweet-floral scent – one that accompanies me on my evening walks this time of year. It often brings to mind the song “Lemon Tree” by Peter, Paul, and Mary, a favorite of my father’s when I was a child.
I love all things lemon, especially great low carb lemon bars or Carolyn’s lemon sour cream pie. But as much as I love lemon, I love coconut, too. I can’t think of a better way to celebrate Spring than with my two favorites flavors in this beautiful low carb coconut lemon curd cake.
We low carbers are pretty lucky. Our low carb ingredients are not only nutritious, they taste great. And, the variety of low carb recipes and sugar free desserts available on the internet nowadays astounds me. Part of that reason is we’ve discovered that combining our low carb products results in the best possible texture and flavor – like in this coconut cake.
I combined Honeyville almond flour for a nice moist crumb with Bob’s Red Mill coconut flour with its capacity to absorb moisture and increase yield. This time I skipped the whey protein powder, opting to use more coconut flour for a stronger coconut flavor. It’s scrumptious.
Although this low carb coconut cake is filled with a tangy sugar free lemon curd, I could have chosen to fill it with almost anything. A vanilla, chocolate, or coconut pastry cream would make a great filling for the cake or even a flavored whipped cream. A few good basic recipes can be combined in endless ways – that’s the excitement factor for me!
If you love to bake, then this recipe is for you. The cake consists of three easy recipes: the lemon curd, the coconut cake, and the stabilized whipped cream frosting. Make it easy on yourself and prepare the lemon curd and cake several days in advance and refrigerate. Assemble and frost the cake the day before needed so the lemon curd will have time to set up. Drizzle the lemon curd on the top before serving. Raspberries make the perfect finishing touch.
This is a 6-inch diameter cake, but even so, it’s 4 inches high and easily serves 12. It can easily be baked in 3, 8-inch round pans for a shorter but larger diameter cake. Baking time will be different, so I suggest you follow the baking time stated in one of Carolyn’s other recipes like her delicious looking Strawberry Lemonade Cake. Enjoy!
Coconut Lemon Curd Cake
- ½ cup fresh lemon juice
- ½ cup granular Swerve Sweetener
- 3 large eggs
- 3 large egg yolks
- 3 tbsp. butter cut into 3 pieces
- 2 teaspoon arrowroot powder or cornstarch
- Zest from the lemons
Whipped Cream Frosting:
- ½ cup flaked coconut for the outside of the cake
- Raspberries optional
- Mix the Swerve and arrowroot powder together in a small pot. Add the egg yolks and lemon zest, whole eggs, and lemon juice whisking thoroughly between each addition.
- Turn the heat to medium and whisk until the mixture just begins to thicken. Adjust the heat to medium-low and whisk briskly until the mixture thickens, all at once.
- Turn off the heat and continue whisking for 1 minute. Whisk in the butter. Strain the mixture into a clean bowl. Cool, cover with cling film and refrigerate overnight or up to 4 days.
- Preheat oven to 350 degrees F and position rack to the lower third. Spray two 6 x 2 -inch round pans (or three 8x1-inch pans) with baking spray and line the bottoms with parchment.
- Add the first 5 ingredients to a medium bowl and cream until light and fluffy. Add the egg whites and beat again until light and fluffy. In a small bowl, add the remaining dry cake ingredients and whisk to combine and break up any lumps. Add ⅓ of the dry ingredients and beat until incorporated. Add two eggs and beat until light and fluffy. Scrape down the bowl and repeat the procedure ending with the final addition of the dry ingredients. Lastly, add the almond milk and beat, keeping a nice fluffy texture. Divide the batter between the prepared pans and spread with an offset spatula. Lift the pans a few inches off of the counter and drop 2-3 times to knock out any large air bubbles.
- Place pans in the oven and raise the temperature to 400 degrees F for 10 minutes, then back to 350 degrees for 20-30 minutes more. The cakes are done when firm to the touch but they still sound a little moist. (Cooking time will be less with three 8-inch pans.) Remove cakes from the oven and cover with a clean tea towel to cool completely. They will sink a bit in the middle. Wrap with cling film and refrigerate until needed.
- Whip the heavy whipping cream with the sweetener and flavorings until almost stiff. Sprinkle the xanthan gum over the whipped cream and whip until very stiff and almost clumpy. Put ⅓ of the whipped cream into a pint ziploc bag and snip off ⅜ inch off the corner (or slide a large round open tip into the bag).
- Remove and reserve ¼ cup of lemon curd. Mix the remaining lemon curd to loosen it.
- For 6-inch pans: Slightly slice off the tops to even out the cakes and then slice each cake in half horizontally. Place one cake half on the serving plate and squeeze a ring or dam of whipped cream along the inside edge of the cake. Spread ⅓ of the lemon curd on the cake up to the dam. Top with another layer of cake, pressing lightly to level. Follow the same procedure and repeat. Top with the remaining cake layer.
- For 8-inch pans: Do the same as above except don’t slice the cakes in half. Spread ½ of the lemon curd on the bottom cake layer up to the whipped cream dam. Top with another layer of cake and follow the same procedure. Top with the remaining cake layer.
- Frost the cake with the whipped cream. Using small handfuls, apply the flaked coconut to the sides of the cake. Stick 4-5 toothpicks into the top and carefully cover the cake in cling film. Refrigerate overnight.
- Before serving, remove the toothpicks and mix the remaining lemon curd with enough water (2-3 tbsp.) to make a spoonable (but not runny) mixture. Spoon the lemon curd around the top edge of the cake, encouraging it to drip down. Spoon the rest of the lemon curd over the top of the cake and spread gently with the spoon or an offset spatula. Cut and serve.